diff --git a/src/app/(route)/mypage/profile/_components/MypageProfileForm/MypageProfileForm.tsx b/src/app/(route)/mypage/profile/_components/MypageProfileForm/MypageProfileForm.tsx
index 3677bf57..a4d76ed2 100644
--- a/src/app/(route)/mypage/profile/_components/MypageProfileForm/MypageProfileForm.tsx
+++ b/src/app/(route)/mypage/profile/_components/MypageProfileForm/MypageProfileForm.tsx
@@ -22,7 +22,7 @@ const MypageProfileForm = () => {
           )}
           {/* TODO(수현): 디자인 토큰 변경 요청 해놓은 상태로 등록 시 추후 변경 */}
           <button
-            className="absolute left-[52px] top-[52px] h-[28px] w-[28px] rounded-full bg-[#f5f5f5] flex-center"
+            className="absolute left-[52px] top-[52px] h-[28px] w-[28px] rounded-full bg-fill-neutral-strong-default flex-center"
             aria-label="프로필 이미지 변경 버튼"
           >
             <Icon name="CameraBorder" size={16} />
diff --git a/src/app/(route)/sign-up/_components/SignUpField/SignUpField.tsx b/src/app/(route)/sign-up/_components/SignUpField/SignUpField.tsx
index 8e00cb73..d78a210b 100644
--- a/src/app/(route)/sign-up/_components/SignUpField/SignUpField.tsx
+++ b/src/app/(route)/sign-up/_components/SignUpField/SignUpField.tsx
@@ -6,7 +6,6 @@ import { useFormContext, useWatch } from "react-hook-form";
 import { useSignUpBtnClick } from "../../_hooks/useSignUpBtnClick";
 import { useEffect } from "react";
 import SignUpItem from "../SignUpItem/SignUpItem";
-import { useNicknameCheck } from "../../_hooks/useNicknameCheck";
 
 const SignUpField = ({ onNext }: { onNext: () => void }) => {
   const {
@@ -21,24 +20,26 @@ const SignUpField = ({ onNext }: { onNext: () => void }) => {
     void trigger("passwordConfirm");
   }, [password, trigger]);
 
-  const { isEmailDisabled, isEmailAuthDisabled, isEmailAuthVerified, handlerToClick } =
-    useSignUpBtnClick();
-
-  const { isNicknameVerified } = useNicknameCheck();
+  const {
+    isEmailDisabled,
+    isEmailAuthDisabled,
+    isEmailAuthVerified,
+    handlerToClick,
+    isNicknameVerified,
+  } = useSignUpBtnClick();
 
   const handleDisabled = (name: string) => {
     if (name === "emailAuth") return isEmailAuthDisabled;
     else if (name === "email") return isEmailDisabled;
   };
 
-  const handleSuccess = (name: string) => {
+  const handleVerified = (name: string) => {
     if (name === "emailAuth") return isEmailAuthVerified;
     else if (name === "nickname") return isNicknameVerified;
     else return false;
   };
 
   const isNextEnabled = isValid && isEmailAuthVerified && isNicknameVerified;
-
   return (
     <>
       <DetailHeader title="회원가입" />
@@ -48,7 +49,7 @@ const SignUpField = ({ onNext }: { onNext: () => void }) => {
             key={item.name}
             disabled={handleDisabled(item.name)}
             btnOnClick={() => handlerToClick(item.name)}
-            isVerified={handleSuccess(item.name)}
+            isVerified={handleVerified(item.name)}
             {...item}
           />
         ))}
diff --git a/src/app/(route)/sign-up/_components/SignUpItem/SignUpItem.tsx b/src/app/(route)/sign-up/_components/SignUpItem/SignUpItem.tsx
index 6cc1a1fd..3bdafef1 100644
--- a/src/app/(route)/sign-up/_components/SignUpItem/SignUpItem.tsx
+++ b/src/app/(route)/sign-up/_components/SignUpItem/SignUpItem.tsx
@@ -27,6 +27,10 @@ const inputValidationRules = {
   },
   nickname: {
     required: true,
+    minLength: {
+      value: 2,
+      message: "2~10자 사이의 닉네임을 입력해 주세요.",
+    },
     maxLength: {
       value: 10,
       message: "2~10자 사이의 닉네임을 입력해 주세요.",
@@ -50,23 +54,17 @@ const SignUpItem = ({ children, isVerified, ...props }: SignUpItemProps) => {
     rules: props.validation,
   });
 
-  const isSuccess = isDirty && !error && field.value;
+  const isFieldSuccess = isDirty && !error && !!field.value;
 
-  const handleSuccess = (name: string) => {
-    if (name === "emailAuth") return isVerified;
-    else return isSuccess;
-  };
+  const isSuccessState =
+    props.name === "emailAuth" || props.name === "nickname" ? isVerified : isFieldSuccess;
 
   const inputValidation = (name: string) =>
     inputValidationRules[name as keyof typeof inputValidationRules];
 
   return (
     <div className="h-[96px]">
-      <InputText
-        validation={inputValidation(props.name)}
-        isSuccess={handleSuccess(props.name)}
-        {...props}
-      >
+      <InputText validation={inputValidation(props.name)} isSuccess={isSuccessState} {...props}>
         {children}
       </InputText>
     </div>
diff --git a/src/app/(route)/sign-up/_constants/SIGNUP_ERROR_MESSAGE.ts b/src/app/(route)/sign-up/_constants/SIGNUP_ERROR_MESSAGE.ts
index 61de0b28..b6a3d9a6 100644
--- a/src/app/(route)/sign-up/_constants/SIGNUP_ERROR_MESSAGE.ts
+++ b/src/app/(route)/sign-up/_constants/SIGNUP_ERROR_MESSAGE.ts
@@ -22,4 +22,8 @@ export const NICKNAME_ERROR_MESSAGE = {
 
 export const EMAIL_CHECK_CODE_MESSAGE = {
   _INVALID_CREDENTIALS: { message: "인증번호가 일치하지 않아요.", status: "warning" },
+  "AUTH400-EMAIL_VERIFY_FAILED": {
+    message: "인증번호가 만료되었거나 일치하지 않아요.",
+    status: "warning",
+  },
 } as const;
diff --git a/src/app/(route)/sign-up/_constants/SIGNUP_INPUT_CONFIG.ts b/src/app/(route)/sign-up/_constants/SIGNUP_INPUT_CONFIG.ts
index 5c7ee8b4..e03394e7 100644
--- a/src/app/(route)/sign-up/_constants/SIGNUP_INPUT_CONFIG.ts
+++ b/src/app/(route)/sign-up/_constants/SIGNUP_INPUT_CONFIG.ts
@@ -43,5 +43,6 @@ export const SIGNUP_INPUT_CONFIG = [
     rule: "2~10자, 특수문자/금칙어 제한",
     children: "중복 확인",
     maxLength: 10,
+    successMessage: "사용할 수 있는 닉네임입니다.",
   },
 ] as const;
diff --git a/src/app/(route)/sign-up/_hooks/useNicknameCheck.ts b/src/app/(route)/sign-up/_hooks/useNicknameCheck.ts
index 85c544c0..b4d9a6f6 100644
--- a/src/app/(route)/sign-up/_hooks/useNicknameCheck.ts
+++ b/src/app/(route)/sign-up/_hooks/useNicknameCheck.ts
@@ -1,8 +1,8 @@
 import { useEffect, useState } from "react";
-import { useApiCheckNickname } from "@/api/fetch/auth";
 import { useFormContext } from "react-hook-form";
 import { useToast } from "@/context/ToastContext";
 import { NICKNAME_ERROR_MESSAGE } from "../_constants/SIGNUP_ERROR_MESSAGE";
+import { useApiCheckNickname } from "@/api/fetch/auth";
 
 export const useNicknameCheck = () => {
   const { addToast } = useToast();
@@ -10,30 +10,32 @@ export const useNicknameCheck = () => {
 
   const [nicknameValue, setNicknameValue] = useState("");
   const [isNicknameVerified, setIsNicknameVerified] = useState(false);
-  const { data, error, isSuccess, isError } = useApiCheckNickname(nicknameValue);
 
-  const handlerNickname = () => {
+  const { data, isSuccess, isError } = useApiCheckNickname(nicknameValue);
+
+  const handleClickNickname = (name: string) => {
+    const nickname = getValues(name);
+
+    setIsNicknameVerified(false);
+    setNicknameValue(nickname);
+  };
+
+  useEffect(() => {
     if (!data) return;
+
     if (isSuccess) {
-      addToast("사용할 수 있는 닉네임입니다.", "success");
       setIsNicknameVerified(true);
+      addToast("사용할 수 있는 닉네임이에요.", "success");
     } else {
+      setIsNicknameVerified(false);
+
       const target = NICKNAME_ERROR_MESSAGE[data.code as keyof typeof NICKNAME_ERROR_MESSAGE];
       addToast(target.message, target.status);
     }
-  };
-
-  useEffect(() => {
-    handlerNickname();
-  }, [nicknameValue, data, error, isSuccess, isError]);
-
-  const handlerToClickNickname = (name: string) => {
-    const nickname = getValues(name);
-    setNicknameValue(nickname);
-  };
+  }, [data, isSuccess, isError, addToast]);
 
   return {
-    handlerToClickNickname,
+    handleClickNickname,
     isNicknameVerified,
   };
 };
diff --git a/src/app/(route)/sign-up/_hooks/useSignUpBtnClick.ts b/src/app/(route)/sign-up/_hooks/useSignUpBtnClick.ts
index ba373c07..d65856d7 100644
--- a/src/app/(route)/sign-up/_hooks/useSignUpBtnClick.ts
+++ b/src/app/(route)/sign-up/_hooks/useSignUpBtnClick.ts
@@ -1,11 +1,11 @@
 import { useFormContext } from "react-hook-form";
 import { useToast } from "@/context/ToastContext";
 import { useMemo, useState } from "react";
-import { useApiCheckCode, useApiSendEmail } from "@/api/fetch/auth";
 import { useErrorToast } from "@/hooks";
 import { useNicknameCheck } from "./useNicknameCheck";
 import { EMAIL_ERROR_MESSAGE, EMAIL_CHECK_CODE_MESSAGE } from "../_constants/SIGNUP_ERROR_MESSAGE";
 import { throttle } from "lodash";
+import { useApiCheckCode, useApiSendEmail } from "@/api/fetch/auth";
 
 export const useSignUpBtnClick = () => {
   const { getValues, trigger } = useFormContext();
@@ -22,7 +22,7 @@ export const useSignUpBtnClick = () => {
 
   const { mutate: EmailMutate } = useApiSendEmail();
   const { mutate: CodeMutate } = useApiCheckCode();
-  const { handlerToClickNickname } = useNicknameCheck();
+  const { handleClickNickname, isNicknameVerified } = useNicknameCheck();
 
   const handlerToClick = useMemo(
     () =>
@@ -59,11 +59,13 @@ export const useSignUpBtnClick = () => {
                     setIsEmailDisabled(true);
                     setIsEmailAuthVerified(true);
                   },
-                  onError: (error) => handlerApiError(EMAIL_CHECK_CODE_MESSAGE, error.code),
+                  onError: (error) => {
+                    handlerApiError(EMAIL_CHECK_CODE_MESSAGE, error.code);
+                  },
                 }
               );
             } else if (name === "nickname") {
-              handlerToClickNickname(name);
+              handleClickNickname(name);
             }
           }
         },
@@ -78,7 +80,7 @@ export const useSignUpBtnClick = () => {
       handlerApiError,
       CodeMutate,
       emailValue,
-      handlerToClickNickname,
+      handleClickNickname,
     ]
   );
 
@@ -87,5 +89,6 @@ export const useSignUpBtnClick = () => {
     isEmailAuthDisabled,
     isEmailDisabled,
     isEmailAuthVerified,
+    isNicknameVerified,
   };
 };